Threonine is an essential amino acid in humans. It is abundant in human plasma, particularly in newborns. Severe deficiency of threonine causes neurological dysfunction and lameness in experimental animals. Threonine is an immunostimulant which promotes the growth of thymus gland.
The Union Pacific Railroad, Building America. The Union Pacific (UP) is one the largest and most powerful railroads in the country. This historic system has been in operation since before the Civil War and much of the general public has at least a general knowledge of UP since it formed the eastern segment of the Transcontinental Railroad.
Bailey Yard. Bailey Yard is the worldâs largest railroad classification yard. Personnel there sort, service and repair locomotives and cars headed all across North America. Owned and operated by the Union Pacific Railroad (UP), Bailey Yard is located in North Platte, Nebraska. The yard is named after former Union Pacific president Edd H. Bailey.